Investigation of mechanical and microstructural properties of Zircaloy-4 under different experimental conditions

Chinthaka M. Silva; Keith J. Leonard; Eric Van Abel; J. Wilna Geringer; Chris D. Bryan

doi:10.1016/j.jnucmat.2017.12.012

Investigation of mechanical and microstructural properties of Zircaloy-4 under different experimental conditions

Chinthaka M. Silva, Keith J. Leonard, Eric Van Abel, J. Wilna Geringer, Chris D. Bryan

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

Two types of Zircaloy-4 (alpha-annealed and beta-quenched) were investigated in their different forms. It was found that mechanical properties of Zircaloy-4 are affected significantly by welding and hydrogen-charging followed by neutron irradiation. Evaluation of microstructural properties of samples showed that these changes are mainly due to the formation of secondary phases such as hydrides—mostly along grain boundaries, dislocation channeling and their disruptions, and the increase in the <a> type dislocation loops.

Original language	English
Pages (from-to)	546-557
Number of pages	12
Journal	Journal of Nuclear Materials
Volume	499
DOIs	https://doi.org/10.1016/j.jnucmat.2017.12.012
State	Published - Feb 2018

Bibliographical note

Publisher Copyright:
© 2017

Funding

Support for this research work was provided by the US Department of Energy's National Nuclear Security Administration (DOE/NNSA) , Office of Material Management and Minimization's Molybdenum-99 Program . The authors would also like to thank the following coworkers for their contributions to completing this research project: Michael Trammel, Christopher Stevens, Clifford Davisson, Michael McAlister, Tom Geer, Alta Marie Williams, Maxim Gussev, Luis Mora, Brian Eckhart, Pat Bishop, Joel McDuffee, Stephanie Curlin, Aaron Selby, Patricia Tedder, and Sam Crawford. This research used resources at the High Flux Isotope reactor, a DOE Office of Science user Facility operated by the Oak Ridge National Laboratory. This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy . The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725
National Nuclear Security Administration

Keywords

Martensite
Neutron irradiation
TIG welding
Zircaloy-4
Zirconium hydride

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abstract = "Two types of Zircaloy-4 (alpha-annealed and beta-quenched) were investigated in their different forms. It was found that mechanical properties of Zircaloy-4 are affected significantly by welding and hydrogen-charging followed by neutron irradiation. Evaluation of microstructural properties of samples showed that these changes are mainly due to the formation of secondary phases such as hydrides—mostly along grain boundaries, dislocation channeling and their disruptions, and the increase in the type dislocation loops.",

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doi = "10.1016/j.jnucmat.2017.12.012",

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AU - Geringer, J. Wilna

AU - Bryan, Chris D.

PY - 2018/2

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AB - Two types of Zircaloy-4 (alpha-annealed and beta-quenched) were investigated in their different forms. It was found that mechanical properties of Zircaloy-4 are affected significantly by welding and hydrogen-charging followed by neutron irradiation. Evaluation of microstructural properties of samples showed that these changes are mainly due to the formation of secondary phases such as hydrides—mostly along grain boundaries, dislocation channeling and their disruptions, and the increase in the type dislocation loops.

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KW - Neutron irradiation

KW - TIG welding

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JF - Journal of Nuclear Materials

ER -

Investigation of mechanical and microstructural properties of Zircaloy-4 under different experimental conditions

Abstract

Bibliographical note

Funding

Keywords

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